Automobile-tire



UNITED STATES PATENT OFFICE" AUTOMOBILE-TIRE.

T aZZ whom it may concern Be 117k110W11 that I, ED\VARD E. BULL, a

citizen 01 the United States, residing at lVhitwell, in the county ofMarion and State of Tennessee, have invented a new and usefulAutomobile-Tire, of which the following is 21 specification.

This invention relates to new and useful improvements in cushion tiresto be used in conneotion with motor vehioles of various types, and it isthe primary object of the i11- "ention to provide 21, tire of thischaracter which Will possess a maximum amount of resiliency.

A urther object of the invention is to provide a tre emhodying an ontercasing of rubber or other suitable materal, and en inner casingremovably supported within the outer cesing, and having means orsupporting the side walls of the inner casing in spaoed relation withthe inner Welle of the outer casing, to add resiliency to theconstruction.

WVith the oregoing -and o-ther objeots in view which Will appear as thedescrption proceeds, the invention resides in the combination andarrangement of parts 2L11(1 in the details 01 construction herenafterdescribed and claimed, it being understood that changes in the preeiseemloodiment of the invention herein disclosed, may be made within thescope of what is claimed, witho ut departing i'rom the spirit of theinvent1on.

Referring to the drawing Figure 1 illustrates a transverse sectionelview through 1 cushion tire constructed in accordance with the presentinvention; and

Fig. 2 illustrates a fragmental sectional V1GW of the modified form ofthe invention.

Referring to the drawing in detail, the reference character 5 designatesthe outer cesing of the tire, which is substantially circular in crosssection zuid includes the relatively thick bead portions 6 presentingthe shoulder 7 and {I relatively flat rim en gaging section 8.

The bead portions 6 are constructed so that the opposed inner side walls9 thereof will lie in spaced relation With each other, when the deviceis applied to a rim to provide a clearance for the depending portions 10forming the ende of the inner seotion 11 of the tire.

This inner section 11 includes a circular Specfication of LettersPatent.

Patented Nov. 9, 1920.

Application fi1ed December 5, 1919. Seral No. 342,646.

strip of rubber or tire fabrie bent upon itself, as shown by Fig. 1 ofthe drawing, the enlargements 12 ormed adjacent the depending portions10 of the inner oasing presenting inelined surfaces 13 contacting Witthe inner surfaces 1 1 01: the outer oasing, so that the direct pressureusually directed to the trend portion of the tire Will be exerted ordistrihuted to the enlargements 12 and the bead portions 6 ofthe lateralcasing.

As shown, the outer surfaces of the inner section 11 are construoted sothat they Will lie in spaced relation with the inner ourved surfaces ofthe enter casing, the inner walls of the inner casing also lying inspaced relation with eaeh ether to provide L com' partment 15 for housmgthe metallic springs 16 which are disposed throughout the compertment 15in spaoed relation with each other, the numoer 0 springs 16 beingdetermined by the size 01 the tire and the use for which the tire Willbe provided.

These metallic springs 16 also lend resili ency to the tire proper, thesame being disposed transversely of the tire and being o lengths topermit the ende thereof to lie in spaced relation with the inner wallsof the inner section 11 to allow the spring members 16 to expand andcontract under the Weight 01 the wheels supporting the seme, thus itW1ll be seen that when pressure is exerted to the periphery of the tire,the springs expand, due to the flattening of the tire, which fiatteningcauses the side walls of the inner section to move away from eaoh other,due to the connections of thesprngs 16 with the walls of the innersection 11.

Disposed within the side walls of the inner section 11, and extendingtherethrough, are the elongated securing pins 17, each of which isprovided with a heed 18 adapted to lie in close engagement with theouter snrface of the inner section 11, the inner ende of said securingpins 17 extending beyond the inner side walls 01 the section 11 andprovided With hooked portions 19, the hooked portions 19 of therespective secur ing pins 17 lying in positions directly opposite eachother to receive the hooked ende 19" of the coiled springs.

Thus it Will be seen that movement of the sde walls of the irinersection 11 is transmitted to the coiled springs 16 which restrict suchmovement, or retard the lateral movements of the s1de walls of the innersect-i0n 11 to cushion the impact caused by the tire meetingobstructions on the suraee over whch the SELII1B is operating.

Vhen the device is used 01 light werk, it may be desmble to eliminatethe use of the inner czising 11 andto this end the heads 18 oftheseeuring ins 17 as shownin the modified form of the inventonillustrated by Fig. 2 01 the drawing are embedded withn the side we1lsof the casing 5 with the resut thet theflatteningj o the irewhielrpreduces lateral m0vement 015 the side wails thereof, isrestricted by the coiled sprngs 1G, assoeiated with the seciiring pi11s17, WhCh coiled s arings return the sidewallsof the tiie easng to theirn0imal positions, after the same have moved.

Heving thus described the nvention, what is claimed is:

1. A cushion tire including en oute1 casing, en inner section includingEL strip of fiexible material bent upon itself end posi tioned Within the outer casing', the outer lateral wa1ls of the innersection lying nspaced relation Wih the inner side wa1ls of the o uter cas1ng, 1 ndmeans hav1ng connecng an inner section including a strip of fiexiblemateral bent upon itse1f and positioned within the outer casing, theinne1 secton having inclined surfaces adjacenf; the inner edge thefeof,the inelined surface s contaeting with the inner side surfaces 0 theouter casing, said inner seetion hmsing a portion thereof eontactng Withthe nner wa1l of the treed of the outer casing, the enter lateral Wallsof the nne1 secti011 being spased from the inner walls of the outereesing, and means 01 restricting lateral movement of the side walls ofthe inner section with reletion t0 each other.

In testimony that I claim the feregong as my own, I have heret0afiixed:my signature in the presence oftwo witnesses.

EDWARDE. BUL.

Wtnesses M. Gr. BULL, LOUELLA BLL)

